I posted a long message last night that seems to have gone missing, so I will repost.
This is the first FI bike I have had, so the system unfamiliar to me. The Quota has 28000km on it, and is running the PCIII. It runs really rough at anything below 3500. There is occasional popping back through the throttle body, as well as popping through the exhaust on deceleration. Unless I am extremely careful, under load the progression from idle is very abrupt, and the deceleration is almost like I chopped the throttle. Above 4000rpm is seems to run well, although I can't really tell as at that speed I can't hear the engine well. It pulls like crazy from 4500 upward. In short the bike is intractable at low speeds, and is hard to get off the line; it would be dangerous to be driving it in any sort of traffic with the way is responds.
The popping and farting would, on a carbed bike, indicate to me that the cylinders were out of synch, but I don't know about an EFI engine. So I used my digital manometer on it tonight, and at 1100rppm the balance says I have 12mbar on the right side. At 3000rpm I it is only off by 1mbar. The idle is set at 950rpm which seems low.
I checked plug gap, and it seems okay at .7mm, although I will buy a new set tomorrow just in case. I was going to check and reset the valve clearance if necessary to see if that makes any difference.
This is a new-to-me bike, so I do not know its history, or when the fuel filter was changed. Is there anything else I should be looking at to get this old girl running a lot more smoothly?
Thanks!
JD
This is the first FI bike I have had, so the system unfamiliar to me. The Quota has 28000km on it, and is running the PCIII. It runs really rough at anything below 3500. There is occasional popping back through the throttle body, as well as popping through the exhaust on deceleration. Unless I am extremely careful, under load the progression from idle is very abrupt, and the deceleration is almost like I chopped the throttle. Above 4000rpm is seems to run well, although I can't really tell as at that speed I can't hear the engine well. It pulls like crazy from 4500 upward. In short the bike is intractable at low speeds, and is hard to get off the line; it would be dangerous to be driving it in any sort of traffic with the way is responds.
The popping and farting would, on a carbed bike, indicate to me that the cylinders were out of synch, but I don't know about an EFI engine. So I used my digital manometer on it tonight, and at 1100rppm the balance says I have 12mbar on the right side. At 3000rpm I it is only off by 1mbar. The idle is set at 950rpm which seems low.
I checked plug gap, and it seems okay at .7mm, although I will buy a new set tomorrow just in case. I was going to check and reset the valve clearance if necessary to see if that makes any difference.
This is a new-to-me bike, so I do not know its history, or when the fuel filter was changed. Is there anything else I should be looking at to get this old girl running a lot more smoothly?
Thanks!
JD